Hib (Haemophilus influenzae type B) is hardly a household word, but the bacterium can be very nasty to young children. A vaccine was introduced in 1985, and since then rates of severe Hib infections have decreased more than 90% in areas where the vaccine is routine.

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About Dawn Pedersen

I am a science educator, web designer, artist, and mom. I have an AS degree in biology, a BA in fine art, and an MA in education. I have earned teaching credentials in biology and art. I have been designing for Web and print since 2000, and I taught high school and college for 12 years. I live in California.